為改善環境汙染所造成的溫室效應，本研究採用比較分析法收集整理國內各家汽車在引擎技術創新方面的性能差異化，改善油耗與二氧化碳（CO2）排放，本研究著重在傳統引擎創新與輸出動力改變兩個面向，研究結果發現：藉由傳統引擎的創新（如福特汽車的渦輪增壓引擎）及輸出動力的改變（如豐田的油電混合車）具有正面的改善。

The greenhouse effect caused by technological development and industrial pollution has accelerated the speed of global warming and climate change. We make a preview of the current industry and apply a comparative analysis approach to examine the various domestic automotive products which utilise up-to-date innovative technology. Their contribution to fuel consumption and emissions of the greenhouse gas, carbon dioxide (CO2), are then investigated. This study focuses on technical innovation in a conventional engine and output power. The results indicate that innovative engines (such as the Ford turbo petrol/diesel engine, the EcoBoost/TDCi) have improved energy consumption and CO2 emissions.